The prefix #per- replaces the prefix #ber- of verbs and adjectives, and so forms a noun indicating the person or instrument performing the action referred to by that verb, or possessing the quality referred to by that adjective (Macdonald and Soenjono 1967:99)

Poerwadarminta 1976

in a few cases #per- replaces #ber- in verbs and combines with the suffix #-an to form nouns referring to the process of the action referred to by the verb; occasionally the noun refers to the place where the action is performed (Soenjono and Macdonald 1967:100)

Poerwadarminta 1976

nominal affix: #abot 'arrive', #pag-abot 'arrival'

Mintz and Britanico 1985

nominal affix: #mog-odu 'to rebuke', #pog-odu 'a rebuke'

Antonissen 1958

prefix forming verbal nouns: act of. 1. Followed by the simple root word if derived from an #um verb, as #um-alis 'to depart': #pag-alis 'departure'. 2. Followed by the root word with the first syllable reduplicated, if derived from a #mag- verb, as #mag-alis 'to remove', #pag-a-alis 'removal, act of removing'

Panganiban 1966

Substantives with the prefix #par- do occur without there being a corresponding verb with the prefix #mar-. These substantives are derived from substantives that have a preposition before them, or from those that, with a preposition, function as adverbs ... These substantives rather represent a person and, therefore, can also be formed from intransitive verbs (van der Tuuk 1971:186)

Warneck 1977

makes nouns of place (Nababan 1981:95)

Warneck 1977